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vaieri [72.5K]
2 years ago
10

True or false: When testing the difference between two population means it is unlikely that one would know the value of the popu

lation variances.
Mathematics
1 answer:
erma4kov [3.2K]2 years ago
3 0
The answer is True
………
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Charlotte is solving the following equation for X (x+3)^2-10=2 her first steps are given below (x+3)^2=12 x+3= + square root 12
Katarina [22]

The values of the x in the given equation are x = 6.46 and x = -0.46

<h3>Solving an equation </h3>

From the question, we are to solve the equation for x

The given equation is

(x+3)² -10 = 2

First, add 10 to both sides of the equation

(x+3)² -10 +10 = 2 +10

(x+3)²  = 12

Now, take the square root of both sides to get

x + 3 = ±√12

∴ x = 3 ± √12

x = 3+√12 OR 3-√12

x = 3 + 3.46 OR 3 - 3.46

x = 6.46 OR -0.46

Hence, the values of the x in the given equation are x = 6.46 and x = -0.46

Learn more on Solving an equation here: brainly.com/question/24334139

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7 0
2 years ago
The principal P is borrowed and the loan's future value A at time t is given. Determine the loan's simple interest rater.
Anni [7]
Interest rate = 7%

I= PRT where I is the interest earned, p is the principal, r is rate as a decimal, and t is time in years.


A - P will give us the interest earned.

12,150 - 9,000 = 3,150

3150 = (9000)(r)(5)
3150 = 45,000r
r = 0.07
r = 7%

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2 years ago
Kelly joins Powerhouse Gym. The cost is $30 per month and a one-time $100 joining fee. Lisa joins MegaMuscle Gym for $35 per mon
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In 10 months Lisa will have paid the same amount as Kelly, but in month 11 she will have paid more.
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3 years ago
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Points that lie on the same line are called
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<span>Collinear points</span> are points that are on the same line
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3 years ago
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If a 20 in. by 30 in. window has a wooden frame 4 inches wide surrounding it, what is the total area of the window and frame?
Crank
I believe the formula is lxwxh if so it's 20 x 30 x 4= 2400 i hope this helped
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3 years ago
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